EXPLANATIONS AND REFERENCES, 



PLATE CVII. 



Figures magnified 125 diameters. 



PAGE. 

 Figs 1, 2. CLADOPHORA FRACTA, ...... 124 



" 3, 4. " " escaping zoogonidia, . 124 



" 5, 6. forma gossypina . . . .125 



" 7, 8. CLADOPHORA FLOTOAVIANA, . 126 



